Bruising of the skin may occur after trauma to the leg, as the trauma may cause capillary rupture and bleeding, resulting in subcutaneous bruising. To quickly eliminate the bruise, first of all in the early stage of trauma with ice packs for cold compresses. Early trauma with ice packs for cold compresses can shrink the local capillaries, reduce bleeding, and can reduce inflammation exudation, thus playing a role in reducing swelling and pain. In addition to bruising for a longer period of time, you also need to use hot towels for appropriate hot compresses, which can promote local blood circulation, you can eliminate bruising, but also can be used externally with safflower oil and other drugs, which can promote local blood circulation, relieve pain, eliminate bruising. If the bruising occurs frequently, you should also go to the hospital for further examination. Check the blood routine, coagulation system, to rule out thrombocytopenic purpura and other diseases caused by skin bruises.